Separation of Control and User Plane for Proxy Mobile IPv6
draft-ietf-netext-pmip-cp-up-separation-02

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Last updated 2014-02-14
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NETEXT WG                                                    R. Wakikawa
Internet-Draft                                           Softbank Mobile
Intended status: Standards Track                           R. Pazhyannur
Expires: August 18, 2014                                   S. Gundavelli
                                                                   Cisco
                                                              C. Perkins
                                                          Futurewei Inc.
                                                       February 14, 2014

       Separation of Control and User Plane for Proxy Mobile IPv6
             draft-ietf-netext-pmip-cp-up-separation-02.txt

Abstract

   This document describes splitting of Control Plane (CP) and User
   Plane (UP) for a Proxy Mobile IPv6 based network infrastructure.
   Existing specifications allow a MAG to perform splitting of its
   control and user plane using Alternate Care of address mobility
   option for IPv6, or Alternate IPv4 Care of Address option for IPv4.
   However, the current specification does not have semantics for
   allowing the LMA to perform such functional split.  To realize this
   requirement, this specification defines a mobility option that
   enables a local mobility anchor to provide an alternate LMA address
   to be used for the bi-directional tunnel between the MAG and LMA.
   With this extension, a local mobility anchor will be able to use an
   IP address for its user plane which is different than the IP address
   used for the control plane.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on August 18, 2014.

Copyright Notice

Wakikawa, et al.         Expires August 18, 2014                [Page 1]
Internet-Draft             PMIPv6 CP-UP Split              February 2014

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Conventions and Terminology  . . . . . . . . . . . . . . . . .  4
     2.1.  Conventions  . . . . . . . . . . . . . . . . . . . . . . .  4
     2.2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  LMA User Plane Address Mobility Option . . . . . . . . . . . .  5
   4.  Protocol Considerations  . . . . . . . . . . . . . . . . . . .  6
   5.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  8
   6.  Protocol Configuration Variables . . . . . . . . . . . . . . .  8
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9
   8.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  9
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     9.1.  Normative References . . . . . . . . . . . . . . . . . . .  9
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 10
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10

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Internet-Draft             PMIPv6 CP-UP Split              February 2014

1.  Introduction

   Widely deployed mobility management systems for wireless
   communications require isolation between the path for forwarding data
   packets (the user plane) and the control plane signaling for mobility
   management.  To meet this requirement, Proxy Mobile IPv6 requires
   that the control plane functions of the local mobility anchor (LMA)
   to be addressable at a different IP address than the IP address
   assigned for the user plane.  However, the current specification does
   not have semantics for allowing the LMA to perform such functional
   split.  The LMA is required to associate the IP address of the tunnel
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